Compound wheel



Sept. 6 1927.

T. KELLEHER ET AL COMPOUND WHEEL Filed Aug. 17, 1925' F1 11.- floater/6 Karlie/ lter i8 v and HerZerzKz'um mmvrons.

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Patented Sept. 6, 1927.

THOMAS -J. KELLEHER Ann HERBERT KRUMP, or cnrcaeo, ILLINOIS.

CQMFOUND VJ HEEL.

Application filed August 17, 1925. Serial No. 50,736.

This invention relates to an improvement in wheels which are adapted to be usedas pulleys, gear wheels, sprocket wheels and fly wheels.

Among the objects of the invention are to obtain a compound wheel compris ng a plurality of members, which may be used as a pulley or fly wheel, and when suitable teeth are cut in the peripheral rim thereof,

1!) may be used as gear wheels orsprocket wheels. A. further object is to obtain a compound wheel which may be substituted for a steel casting for all'the purposes above set forth. An additional object is to ob- 1r. tain a compound wheel adapted for the purposes above set forth which is economically made, is durable, not liable to break or become injured in any way, and which permits a variation of the metal forming selected ones of the members thereof to conform to particular requirements.

We have illustrated a compound wheel embodying this invention, and variations in the construction thereof, in the drawing referred to, in which,

Fig. 1 is a side elevation of a metal bar, preferably of steel,

Fig. 2 an end elevation of said bar, and

Fig. 3 a side elevation of a ring obtained from said bar.

Fig. 4: is a top plan View of a disk which forms the web member of the compound wheel, and

Fig.5 a side or edge elevation of said disk.

Fig. 6 is a side elevation of a tubular element forming a hub member, and

Fig. 7 an end elevation of said tubular element.

Fig. 8 is a vertical section of a wheel embodying the invention.

F ig. 9 is a side elevation of a wheel embodying the invention, showing gear teeth thereon. a

Fig. 10 is a vertical sectional View of a modification of the construction illustrated in Fig. 8, and I Fig. 11 is a vertical section of a portion of the web and hub members of an additional modification of the wheel, on an enlarged scale.

A reference character applied to designate a given part indicates said part throughout the seve all figures of the drawing, wherever the same appears.

1 represents a metal bar and 2 and 3 the member.

respective ends thereof. The rim member of the Wheel is obtained from bar 1, said bar being formed into a circular ring, a), preferably by rolling, as it is termed, with the ends 2 and 3 adjacent to each other, and in contact or close to contact, as is, illustrated in Fig. 3.

The'web member of the wheel consists of a metal disk, (5), which is provided with a central aperture 6. The diameter of the web member 5 is substantially the same as the inner diameter of rim member l, and said web member is placed in rim member 4, substantially intermediate of the ends of said rim member, as is illustrated in Figs. 8 and 10; and said web member is rigidly secured'to said rim member by welding, as is illustrated at 9, 10, Figs. 8, 9 and 10. Figs. 6 and 7, illustrates a short section of metal, preferably tubing, which in the preferred construction of our compound wheel is provided with an aperture, 12, substantially corresponding in diameter with the diameter of central aperture 6 in Web mem-- her 5. In this preferred construction a plurality of short sections of metal tubing, in addition to the portion of the web member adjacent thereto, form the hub of the compound wheel. Each of said sections are rigidly secured on the side of web member 5, by welding, as at 13, 14, Figs. 8, 9 and 11.

In the construction illustrated in Fig. 10, but one tubular member is used for the hub member, which extends through the central aperture in web member 5, said central aperture corresponding in diameter with the outer diameter of said member 11. In this modified construction the tubular member 11 is rigidly secured to'web member 5 by welding, as at 13, 14:, said tubular member being positioned so that web member 5 is substantially intermediate the ends of said tubular This construction is well adapted for the use of the compound Wheel as an idler, either as a loose pulley or a loose gear Wheel, and is more economical than the preferred construction hereinbefore described,

and illustrated in Fig. 8.

WVhere the compound wheel embodying our invention is to be usedon extra heavy work or duty, we add to our preferred construction a plurality of pins, 15, 15, Fig. 11, which fit snugly in holes l6, 16 in tubularmember 11. These pins 15 also extend through corresponding apertures in web member 5, said apertures registering with holes 16. A plurality of pins 15 inserted in registering holes 16 and extending through corresponding apertures through central web 5 are used; the exact number of said pins being determined by the size of the compound wheel, and the nature of the work the wheel is required to perform.

17, Fig. 9, represents an ordinary key Way in the several members forming the hub.

When the several members of our compound wheel have been assembled and rigidly secured together by welding, teeth suitable for engagement with a sprocket chain, or gear teeth, as 18, Fig. 9, may be cut in the peripheral rim 4.

We have heretofore, in making our compound Wheel, joined the several members together by what is known as electrical welding, and we prefer such manner of welding, as we find that no warping of the several members results from thus welding adjacent faces.

l/Ve claim:

In a wheel provided with a rim, a'web member consisting of ametal disk of substantially the same diameter as the inner diameter of said rim, and provided with a central aperture and with additional spaced apertures, in combination with a hub comprising a plurality of members respectively provided with a central aperture corresponding in diameter with the diameter of said central aperture in said web member, and provided with spaced holes, pins extending through said additional spaced apertures and into said spaced holes, said web member and said hub members, joined by welding, to isolate saidpins from moisture.

THOMASJ. KELLEHER. HERBERT KRUMP. 

